masqmail-0.2

view src/interface.c @ 3:8c55886cacd8

find changesets by author, revision, files, or words in the commit message
man pages will be maintained in troff now
author meillo@marmaro.de
date Fri, 26 Sep 2008 21:40:10 +0200
parents
children 26e34ae9a3e3
line source
1 /* MasqMail
2 Copyright (C) 2000 Oliver Kurth
3
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17 */
18
19 #include "masqmail.h"
20
21 /* define if you get problems... */
22 /*#define SOCKADDR_OLD 1*/
23
24 gboolean init_sockaddr(struct sockaddr_in *name, interface *iface)
25 {
26 struct hostent *he;
27 struct in_addr ia;
28
29 #ifdef SOCKADDR_OLD
30 /* here I tried to be intelligent and failed. */
31 if(isalpha(iface->address[0])){
32 if ((he = gethostbyname(iface->address)) == NULL) {
33 logwrite(LOG_ALERT,
34 "local address '%s' unknown. (deleting)\n",
35 iface->address);
36 return FALSE;
37 }
38 memcpy(&(name->sin_addr), he->h_addr, sizeof(name->sin_addr));
39 }else if(isdigit(iface->address[0])){
40 if(inet_aton(iface->address, &ia)){
41 memcpy(&(name->sin_addr), &ia, sizeof(name->sin_addr));
42 }else{
43 logwrite(LOG_ALERT,
44 "invalid address '%s': inet_aton() failed (deleting)\n",
45 iface->address);
46 return FALSE;
47 }
48 }else{
49 logwrite(LOG_ALERT,
50 "invalid address '%s', should begin with a aphanumeric (deleting)\n",
51 iface->address);
52 return FALSE;
53 }
54 #else
55 /* this is how others to it. I follow the crowd... */
56 if(inet_aton(iface->address, &ia) != 0){
57 /* IP address */
58 memcpy(&(name->sin_addr), &ia, sizeof(name->sin_addr));
59 }else{
60 if ((he = gethostbyname(iface->address)) == NULL) {
61 logwrite(LOG_ALERT, "local address '%s' unknown. (deleting)\n", iface->address);
62 return FALSE;
63 }
64 memcpy(&(name->sin_addr), he->h_addr, sizeof(name->sin_addr));
65 }
66 #endif
67 name->sin_family = AF_INET;
68 name->sin_port = htons(iface->port);
69
70 return TRUE;
71 }
72
73 int make_server_socket(interface *iface)
74 {
75 int sock = -1;
76 struct sockaddr_in server;
77
78 memset(&server, 0, sizeof(struct sockaddr_in));
79
80 /* Create the socket. */
81 sock = socket (PF_INET, SOCK_STREAM, 0);
82 if (sock < 0){
83 logwrite(LOG_ALERT, "socket: %s\n", strerror(errno));
84 return -1;
85 }
86
87 if(init_sockaddr(&server, iface)){
88 /* bind the socket */
89 if (bind (sock, (struct sockaddr *) &server, sizeof (server)) < 0){
90 logwrite(LOG_ALERT, "bind: %s\n", strerror(errno));
91 return -1;
92 }
93 }else{
94 close(sock);
95 return -1;
96 }
97
98 return sock;
99 }